Hawaii Igneous Rocks
Aloha! and welcome to Hawaii. This is just our first stop on our 10 stop tour. I'm sure your familiar with Hawaii having many volcanoes that are active right at this moment. Now by active I don't mean their erupting I mean they are active inside the volcano.
If your now sure how Igneous rocks form let me enlighten you. Igneous rocks is formed when lava cools. This can happen rapidly like it would in a volcanic eruption or slowly like it would with seafloor spreading. Some igneous rock may be pushed into the mantle. There, these rocks are subject to high temperatures and pressure, and will melt and becomes magma again.
As you can see Igneous rocks form when lava from a volcanic eruption cools. Do you know what Intrusive means? It means in, inside, or within I am pointing this out because Igneous rocks not only form outside the earths surface but also within. What about the definition Extrusive meaning extra or outside I'm sure your familiar with Igneous rocks forming on top of the earths surface.
If your now sure how Igneous rocks form let me enlighten you. Igneous rocks is formed when lava cools. This can happen rapidly like it would in a volcanic eruption or slowly like it would with seafloor spreading. Some igneous rock may be pushed into the mantle. There, these rocks are subject to high temperatures and pressure, and will melt and becomes magma again.
As you can see Igneous rocks form when lava from a volcanic eruption cools. Do you know what Intrusive means? It means in, inside, or within I am pointing this out because Igneous rocks not only form outside the earths surface but also within. What about the definition Extrusive meaning extra or outside I'm sure your familiar with Igneous rocks forming on top of the earths surface.